Power steering pulley

Hey guys I am new (sorry if this is a repeat thread) here. I have a 72 Scamp with a 318 that has been rebuilt. The power steering pulley was slightly (like 1/4 to 1/2 inch) forward in relation to the other pulleys. This resulted in a squeeling belt any time I was above 2200 RPMs. Well, I am lazy and this has been going on for a good long while but the pump finally started leaking so I decided to change it and go ahead and try to straighten out the pulley as well. I pulled off the pulley (with some help of long poles to get the leverage) and am getting ready to put it back on. Is there any way I can put it further down the shaft of the new pump than it was on the original pump? On the old pump it seemed that there was some room to where the pulley could have been pushed back further on the shaft, does anyone know if this is true? Some of my brackets are powdercoated from the rebuild so I think that may be some reason for the spacing. Any other ideas as I do not want to put it all back together with the same results. Also, how do I get the pulley onto the new pump? Thanks.